Bubbles trapped in the cavities always play important roles in the underwater applications of
structured hydrophobic surfaces. Air exchange between bubbles and surrounding water has
a significant influence on the morphological bubble evolution, which in turn frequently affects
the functionalities of the surfaces, such as superhydrophobicity and drag reduction. In this
paper, air diffusion induced bubble evolution on submerged hydrophobic micropores under
reduced pressures is investigated experimentally and theoretically. The morphological …